Window-strip.



No. 795,120. PATENTED JULY 18, 1905 W. M. HARRIS & A, P. DONALDSON.

WINDOW STRIP.

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irnn STATES Patented July 18, 1905.

WVILLIAM M. HARRIS AND AUGUST F. DONALDSON, OF MANSFIELD, OHIO; SAIDHARRIS ASSIGNOR TO EUGENE H. SIMMS, OF BUCYRUS, OHIO.

WINDOW-STRIP.

SPECIFICATION forming part of Letters Patent No. 7 95,120, dated July18, 1905.

Application filed July 25, 1904:. Serial No. 218,023.

To all whom it may concern.-

Be it known that we, WILLIAM M. HARRIS and AUGUST F. DONALDSON, citizensof the United States, residing at Mansfield, in the county of Richland,State of Ohio, have invented certain new and useful Improvements inWVindoW-Strips, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to a Window-strip, and particularly to a metallicpacking-strip adapted to travel in a groove upon a sash to effect anair-tight joint therewith and also to prevent rattling or movementthereof.

The invention has for its object to provide a construction embodying aplate of spring material secured at one longitudinal edge and providedat its opposite edge with a curved face adapted to contact with a sashand having an inturned outer edge to secure a broad hearing when thestrip is compressed and prevent injury to the window-frame in thecontinuous use of the strip.

Other and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined by theappended claims.

In the drawings, Figure 1 is a perspective with parts broken away,showing the invention applied to a window-sash. Fig. 2 is a detailvertical section with the sash out of contact with the strip. Fig. 3 isa similar view with the strip under compression. Fig. 4 is a detail ofthe strip, showing the free end thereof terminating in a horizontalplane above the body portion; and Fig. 5 is a detail perspective of aportion of the strip.

Like letters of reference refer to like parts in the several figures ofthe drawings.

The letter A designates a window-frame of any desired charactercontaining the usual sash A, which is provided upon its side and bottomrails with a groove A which may be of any character suitable for thepurpose; but a preferred form thereof is herewith shown embodyingopposite inwardly-beveled walls connected at the base of the groove by afiat or straight portion A The strip B may be formed of any suitablespring material, preferably metal, and is provided along one of itslongitudinal edges with securing means B, by which it may be attached tothe sill or side of a window-frame, while its body portion is preferablyslightly curved, as indicated at B in order to secure the desiredelasticity or spring of the material thereof. The free longitudinal edgeof the strip is provided with a curved portion or face B extending awayfrom the body of the plate, and the outer free edge 13 of this portionis turned inwardly, so as to present a broad bearingsurface when thestrip is compressed, as shown in Fig. 3, and also to obviate thescarring or cutting of the frame in the compression of the strip, whichwould occur if the free edge of the curved portion extended directlydownward. It will also be observed that the inwardly-turned edge B" ofthe curved portion terminates above the body B, so that the first actionof the contact of the sash is to bring the body 13 into contact with theframe, exerting the spring tension thereof, and a further movement ofthe sash toward the strip permits the curved portion to exert asupplementary spring action and expand laterally in its downwardmovement, thus fully filling the grooves,as indicated by full lines inFig. 4. This expansion causes a slight travel of the free edge of thestrip within the sashgrooves, and the flat or straight portion A of thegroove is provided to permit this movement within the grooves withoutbinding, while the frictional contact between the strip and groove isreduced to a minimum, owing to the 'rved construction of the strip inits relation to the angular groove.

It will be obvious that the spring-body of the strip insures a constantpressure and per-' fect contact between the side strips and the sash,which effects an air-tight joint and also prevents rattling or othermovement of the sash in the frame, while when the sash is forceddownward upon the sill the tension of the body of the strip issupplemented by the expansion of the curved free edge thereof within thegroove, so as to effect a perfectly tight joint at this point. The freeedge of this curved portion being bent at an angle removes the raw edgeof the metal to prevent injury to theframeand also insures a smoothuniform outer edge having the most desirable bearing contact when thestrip is compressed, while in this compression the angular form ofgroove permits the expansion of the curved edge of the strip withoutfriction and also offers less resistance to the movement of the sash, asthe bearing contact between the'strip and groove is at a single pointupon the flat surface of the groove, which cannot occur in the use of anangular strip having an extended surface contact. It has also been founddesirable to apply a coat of heavy paint to the lower surface of thestrip, which aids mate.

rially in effecting an air-tight joint. The strip is herein shown asapplied to the frame and the groove in the sash, but it will be obviousthat a reversal of this relation may be made.

It will be obvious that changes may be made in the details ofconstruction and configuration without departing from the spirit of theinvention as defined by the appended claims.

Having described our invention and set forth its merits, what we claim,and desire to secure by Letters Patent, is

1. A window-strip comprising a plate of spring material secured at oneedge and provided at its opposite free edge with a raised contact-faceextending away from the body of the plate and terminating in an inturnedouter edge disposed in a plane substantially parallel to and at one sideof the body of the plate, whereby said contact-face is adapted forexpansion independent of the body ofthe plate when under compression.

2. A windowstrip comprising a plate of spring material secured at onelongitudinal edge and provided at its opposite free edge with a curvedface extending away from the body of the plate and adapted to expandlaterally to and independently thereof, and a cooperating memberprovided with a groove of greater transverse diameter than the curvedface and a straight base to contact with said face. i

In testimony whereof we affix our signatures in presence of twowitnesses.

WILLIAM M. HARRIS. AUGUST F. DONALDSON. Witnesses: 7

JOHN WEIL, Gr. W. BAHL.

